Home / 7,149.38-10,724.81-1,955.25

Finding the Fourth Proportional to 7,149.38, 10,724.81 and 1,955.25

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Solution

The fourth proportional to 7,149.38, 10,724.81 and 1,955.25 is: 2,933.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149.38 : 10,724.81 = 1,955.25 : x
  2. Step 2: Convert to fraction form
    7,149.38/10,724.81 = 1,955.25/x
  3. Step 3: Cross multiply
    7,149.38x = 10,724.81 × 1,955.25
  4. Step 4: Simplify right side
    7,149.38x = 20,969,674.98
  5. Step 5: Solve for x
    x = 20,969,674.98/7,149.38
  6. Step 6: Final answer
    x = 2,933.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.